Gems and Gemology
Impact Factor & Key Scientometrics

Gems and Gemology

Impact Factor


H Index


Impact Factor


I. Basic Journal Info


United States
Journal ISSN: 0016626X
Publisher: Gemological Institute of America
History: 1979, 1981-1987, 1997-2001, 2005-ongoing
Journal Hompage: Link
How to Get Published:

Research Categories



II. Science Citation Report (SCR)

Gems and Gemology
SCR Impact Factor

Gems and Gemology
SCR Journal Ranking

Gems and Gemology
SCImago SJR Rank

SCImago Journal Rank (SJR indicator) is a measure of scientific influence of scholarly journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from.


Gems and Gemology
Scopus 2-Year Impact Factor Trend

Note: impact factor data for reference only

Gems and Gemology
Scopus 3-Year Impact Factor Trend

Note: impact factor data for reference only

Gems and Gemology
Scopus 4-Year Impact Factor Trend

Note: impact factor data for reference only

Gems and Gemology
Impact Factor History

2-year 3-year 4-year
  • 2022 Impact Factor
    1 1.316 0.817
  • 2021 Impact Factor
    1.228 0.648 0.687
  • 2020 Impact Factor
    0.433 0.529 0.424
  • 2019 Impact Factor
    0.284 0.268 0.27
  • 2018 Impact Factor
    0.252 0.211 0.225
  • 2017 Impact Factor
    0.265 0.293 0.325
  • 2016 Impact Factor
    0.202 0.297 0.398
  • 2015 Impact Factor
    0.384 0.475 0.4
  • 2014 Impact Factor
    0.362 NA NA
  • 2013 Impact Factor
    0.323 NA NA
  • 2012 Impact Factor
    0.328 NA NA
  • 2011 Impact Factor
    0.342 NA NA
  • 2010 Impact Factor
    0.52 NA NA
  • 2009 Impact Factor
    0.169 NA NA
  • 2008 Impact Factor
    0.157 NA NA
  • 2007 Impact Factor
    0.153 NA NA
  • 2006 Impact Factor
    0.198 NA NA
  • 2005 Impact Factor
    5 NA NA
  • 2004 Impact Factor
    0 NA NA
  • 2003 Impact Factor
    0.077 NA NA
  • 2002 Impact Factor
    0.194 NA NA
  • 2001 Impact Factor
    0.098 NA NA
  • 2000 Impact Factor
    1.086 NA NA
Note: impact factor data for reference only




Impact Factor

Impact factor (IF) is a scientometric factor based on the yearly average number of citations on articles published by a particular journal in the last two years. A journal impact factor is frequently used as a proxy for the relative importance of a journal within its field. Find out more: What is a good impact factor?

III. Other Science Influence Indicators

Any impact factor or scientometric indicator alone will not give you the full picture of a science journal. There are also other factors such as H-Index, Self-Citation Ratio, SJR, SNIP, etc. Researchers may also consider the practical aspect of a journal such as publication fees, acceptance rate, review speed. (Learn More)

Gems and Gemology

The h-index is an author-level metric that attempts to measure both the productivity and citation impact of the publications of a scientist or scholar. The index is based on the set of the scientist's most cited papers and the number of citations that they have received in other publications


Gems and Gemology
H-Index History